California earthquakes

M2.0 earthquake 5 km SW of Cobb, California

A magnitude 2.0 earthquake struck 5 km SW of Cobb, California on Sun, Mar 1, 1987, 2:14 AM PST (10:14 UTC), 1 km (0 mi) below the surface.

A larger quake followed: M3.1 7 km WSW of Cobb, California. This one was a foreshock.

Cobb forecastMore in California

Map

Where this earthquake was located, with the others nearby. Select one for its page.

Open the live map with earthquakes

The earthquake

Magnitude
2.0 (Md, duration), micro
Magnitude from
Northern California Seismic System
Local time
UTC
1987-03-01 10:14:40 UTC
Depth
0.6 km (0.3 mi), shallow
Epicenter
38.784° N, 122.770° W
Tsunami flag
No
Status
Reviewed by a seismologist

Did you feel it?

No one has reported feeling this quake to the USGS.

How well it is located

Reviewed by a seismologist.

Location uncertainty
About 0.1 km horizontally, 0.4 km in depth
Magnitude uncertainty
±0.12
Depth from
From location
Station coverage gap
76°
Stations used
22

Nearest places

Distance and direction from each place to the epicenter, with its forecast.

Nearby

Within 100 km, magnitude 1.5 and up: 171 in the 60 days after this one and 82 in the 30 days before it.

After

  1. 2.34 km W of Cobb, California · 14460 days ago · 1 km deep · 5 km away
  2. 1.918 km ENE of Potter Valley, California · 14460 days ago · 7 km deep · 65 km away
  3. 1.95 km WSW of Cobb, California · 14459 days ago · 1 km deep · 2 km away
  4. 1.68 km WSW of Cobb, California · 14459 days ago · 0 km deep · 5 km away
  5. 1.66 km WSW of Cobb, California · 14459 days ago · 3 km deep · 4 km away
  6. 2.09 km W of Cobb, California · 14459 days ago · -1 km deep · 6 km away
  7. 2.518 km ENE of Potter Valley, California · 14458 days ago · 6 km deep · 66 km away
  8. 2.14 km SW of Cobb, California · 14458 days ago · 1 km deep · 1 km away
  9. 2.3Northern California · 14457 days ago · 1 km deep · 5 km away
  10. 1.77 km W of Cobb, California · 14456 days ago · 0 km deep · 4 km away
  11. 2.07 km WSW of Cobb, California · 14456 days ago · 1 km deep · 4 km away
  12. 1.72 km SSE of Clear Lake Riviera, CA · 14456 days ago · -1 km deep · 18 km away
  13. 2.64 km W of Cobb, California · 14456 days ago · 1 km deep · 4 km away
  14. 1.75 km W of Cobb, California · 14456 days ago · 1 km deep · 5 km away
  15. 1.76 km W of Cobb, California · 14455 days ago · 3 km deep · 4 km away
  16. 1.78 km WSW of Cobb, California · 14455 days ago · 3 km deep · 4 km away
  17. 2.611 km SE of Hopland, California · 14454 days ago · 4 km deep · 26 km away
  18. 2.88 km W of Cobb, California · 14454 days ago · -1 km deep · 5 km away
  19. 1.610 km ENE of Hidden Valley Lake, California · 14454 days ago · 2 km deep · 28 km away
  20. 1.96 km W of Cobb, California · 14454 days ago · 1 km deep · 4 km away
  21. 1.65 km WSW of Cobb, California · 14454 days ago · 1 km deep · 2 km away
  22. 2.27 km W of Cobb, California · 14454 days ago · 1 km deep · 5 km away
  23. 1.76 km W of Cobb, California · 14454 days ago · 3 km deep · 4 km away
  24. 2.48 km W of Cobb, California · 14453 days ago · 1 km deep · 6 km away
  25. 1.93 km WSW of Anchor Bay, California · 14453 days ago · 8 km deep · 74 km away
  26. 1.95 km SW of Cobb, California · 14452 days ago · 0 km deep · 1 km away
  27. 1.64 km WSW of Cobb, California · 14452 days ago · 1 km deep · 3 km away
  28. 1.98 km WSW of Cobb, California · 14452 days ago · 3 km deep · 4 km away
  29. 1.56 km SW of Cobb, California · 14452 days ago · 3 km deep · 1 km away
  30. 1.6Northern California · 14451 days ago · 1 km deep · 2 km away
  31. 1.7Northern California · 14451 days ago · 2 km deep · 4 km away
  32. 2.37 km WSW of Cobb, California · 14451 days ago · 1 km deep · 3 km away
  33. 2.816 km NE of Upper Lake, California · 14451 days ago · 3 km deep · 55 km away
  34. 2.117 km NE of Upper Lake, California · 14451 days ago · 6 km deep · 55 km away
  35. 2.06 km SW of Cobb, California · 14450 days ago · 1 km deep · 0 km away
  36. 1.67 km WSW of Cobb, California · 14450 days ago · 1 km deep · 3 km away
  37. 2.416 km NE of Upper Lake, California · 14450 days ago · 6 km deep · 55 km away
  38. 1.67 km WNW of Geyserville, California · 14450 days ago · 2 km deep · 18 km away
  39. 2.37 km W of Cobb, California · 14450 days ago · 3 km deep · 5 km away
  40. 2.26 km WSW of Cobb, California · 14449 days ago · 3 km deep · 3 km away
  41. 2.912 km ESE of Hidden Valley Lake, California · 14449 days ago · 9 km deep · 30 km away
  42. 1.512 km ESE of Hidden Valley Lake, California · 14449 days ago · 5 km deep · 29 km away
  43. 1.68 km WSW of Cobb, California · 14448 days ago · 2 km deep · 4 km away
  44. 1.86 km WSW of Cobb, California · 14448 days ago · 1 km deep · 4 km away
  45. 1.56 km W of Cobb, California · 14448 days ago · 3 km deep · 4 km away
  46. 3.09 km WSW of Cobb, California · 14448 days ago · 3 km deep · 5 km away
  47. 2.89 km WSW of Cobb, California · 14448 days ago · 2 km deep · 5 km away
  48. 1.65 km N of Novato, California · 14448 days ago · 2 km deep · 72 km away
  49. 2.17 km WSW of Cobb, California · 14447 days ago · 2 km deep · 4 km away
  50. 1.55 km SW of Cobb, California · 14447 days ago · 2 km deep · 1 km away
  51. 2.07 km E of Clearlake Oaks, California · 14447 days ago · 1 km deep · 31 km away
  52. 1.76 km WSW of Cobb, California · 14447 days ago · 1 km deep · 3 km away
  53. 2.4Northern California · 14446 days ago · 3 km deep · 5 km away
  54. 2.47 km WSW of Cobb, California · 14446 days ago · 1 km deep · 4 km away
  55. 2.26 km W of Cobb, California · 14446 days ago · 2 km deep · 5 km away
  56. 1.99 km W of Cobb, California · 14445 days ago · 1 km deep · 6 km away
  57. 1.66 km W of Cobb, California · 14445 days ago · 3 km deep · 5 km away
  58. 1.64 km SW of Cobb, California · 14445 days ago · 0 km deep · 1 km away
  59. 1.88 km S of Cobb, California · 14445 days ago · -1 km deep · 7 km away
  60. 2.85 km SW of Cobb, California · 14444 days ago · 0 km deep · 1 km away

The first 60 of 171.

Before

  1. 2.55 km SW of Cobb, California · 14460 days ago · 1 km deep · 1 km away
  2. 3.26 km W of Cobb, California · 14462 days ago · 3 km deep · 5 km away
  3. 2.111 km N of Clyde, California · 14462 days ago · 0 km deep · 98 km away
  4. 1.520 km ENE of Potter Valley, California · 14463 days ago · 4 km deep · 68 km away
  5. 1.84 km WNW of Cobb, California · 14463 days ago · 2 km deep · 6 km away
  6. 1.8Northern California · 14463 days ago · 4 km deep · 68 km away
  7. 2.19 km NW of Bayview, California · 14463 days ago · 6 km deep · 87 km away
  8. 2.021 km NE of Potter Valley, California · 14464 days ago · 11 km deep · 76 km away
  9. 1.64 km ESE of Philo, California · 14464 days ago · 6 km deep · 62 km away
  10. 1.65 km SW of Cobb, California · 14464 days ago · -1 km deep · 1 km away
  11. 1.67 km WSW of Cobb, California · 14464 days ago · 1 km deep · 3 km away
  12. 1.95 km WNW of Cobb, California · 14464 days ago · 0 km deep · 6 km away
  13. 2.117 km SW of Cloverdale, California · 14465 days ago · 14 km deep · 35 km away
  14. 1.89 km W of Cobb, California · 14465 days ago · -1 km deep · 7 km away
  15. 1.84 km WSW of Cobb, California · 14465 days ago · 1 km deep · 3 km away
  16. 1.76 km WSW of Cobb, California · 14466 days ago · 4 km deep · 4 km away
  17. 1.96 km W of Cobb, California · 14466 days ago · 3 km deep · 5 km away
  18. 2.04 km SW of Cobb, California · 14466 days ago · 1 km deep · 1 km away
  19. 2.47 km WSW of Cobb, California · 14466 days ago · 1 km deep · 3 km away
  20. 2.13 km SW of Cobb, California · 14466 days ago · 1 km deep · 2 km away

Earthquakes todayCalifornia earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc95700. Read Fri, Oct 2, 2026, 4:01 PM UTC.